Global Patent Index - EP 0656833 A1

EP 0656833 A1 19950614 - DATA-RECORDAL USING LASER BEAMS.

Title (en)

DATA-RECORDAL USING LASER BEAMS.

Title (de)

DATENANZEIGE MIT LASERSTRAHLEN.

Title (fr)

ENREGISTREMENT DE DONNEES A L'AIDE DE RAYONS LASER.

Publication

EP 0656833 A1 19950614 (EN)

Application

EP 93918053 A 19930819

Priority

  • GB 9301760 W 19930819
  • GB 9217705 A 19920820

Abstract (en)

[origin: US5717450A] PCT No. PCT/GB93/01760 Sec. 371 Date Apr. 21, 1995 Sec. 102(e) Date Apr. 21, 1995 PCT Filed Aug. 19, 1993 PCT Pub. No. WO94/04365 PCT Pub. Date Mar. 3, 1994A fibre laser (2) is used in data-recordal, such as dye diffusion thermal transfer printing. The fibre laser output (3) is modulated and scanned across a recording medium (4) of adjacent dye donor and receiver ribbons by a modulator (20) and galvanometer (16), so that an image is produced line-by-line in the medium (4) as it passes between spools (19). The fibre laser (2) may comprise a single-mode, neodymium-doped lasing core (5), a multimode pump core (6), an outer cladding (7), and a dichroic mirror (8) at each end, and may be pumped by beams (10) from laser diodes (9) coupled to the pump core (6) by optical fibres (11) and a lens (14). Instead of using a galvanometer (16), the output end of the fibre laser (2) may be moved itself across the recording medium (4), and/or a plurality of the fibre lasers (2) may be bundled together in a one or two dimensional array.

IPC 1-7

B41J 2/46; G11B 7/135

IPC 8 full level

B41J 2/44 (2006.01); B41J 2/32 (2006.01); B41J 2/46 (2006.01); G02B 6/02 (2006.01); G02B 6/036 (2006.01); G02B 26/10 (2006.01); G11B 7/003 (2006.01); G11B 7/085 (2006.01); G11B 7/127 (2012.01); G11B 7/1384 (2012.01); H01S 3/06 (2006.01); H01S 3/07 (2006.01); H01S 3/10 (2006.01); H01S 3/17 (2006.01); H01S 5/00 (2006.01)

CPC (source: EP US)

B41J 2/46 (2013.01 - EP US); B41J 2/4753 (2013.01 - EP US); G06K 15/029 (2013.01 - EP US); G11B 7/003 (2013.01 - EP US); G11B 7/08505 (2013.01 - EP US); G11B 7/127 (2013.01 - EP US); G11B 7/1384 (2013.01 - EP US)

Citation (search report)

See references of WO 9404365A1

Designated contracting state (EPC)

BE CH DE FR GB LI

DOCDB simple family (publication)

US 5717450 A 19980210; DE 69306401 D1 19970116; DE 69306401 T2 19970327; EP 0656833 A1 19950614; EP 0656833 B1 19961204; GB 9217705 D0 19920930; JP H08501159 A 19960206; WO 9404365 A1 19940303

DOCDB simple family (application)

US 38200195 A 19950421; DE 69306401 T 19930819; EP 93918053 A 19930819; GB 9217705 A 19920820; GB 9301760 W 19930819; JP 50605194 A 19930819